Oar lock



9 M 1927' J. L. MOORE OAR LOCK Filed May 1926' Patented Mar. 22, 1927.

JOHN L. MOORE, O]? ALEXANDRIA, MINNESOTA.

OAR LOCK.

Application filed May 24, 1926. Serial No. 111,334..

This invention relates to an oar lock and more especially to a means whereby the same can be held in the socket without danger of becoming accidentally detached and lost.

A further object is to provide a holding means which is simple and eiiicient and which can be shifted readily to permit with dra-wal of the oar look from its socket when desired.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claim-ed without departing from the spirit of the invention.

In the accompanying drawings the pre ferred form of the invention has been shown.

In said drawings,

Figure 1 is an elevation of the oar lock in position within its socket.

Figure 2 is a view showing a portion of the oar lock partly in section and partly in elevation. 4

Figure 8 is a detail view of the locking pin.

Referring to the figures by characters of reference 1 designates a plate having a flange 2 and adapted to be secured to the gunwhale of a boat, this plate being formed with a depending sleeve 3 constituting a bearing for the stem 4E which projects from the yoke 5 of the oar lock. This stem. has a shoulder or enlargement 6 adapted to bear against the plate 1 and in general construction is no different from the oar lock co1n-- monly employed.

The part of the structure constituting the. present invention includes an inclined tapered opening 7 which is extended through the stem 4 and contains a tapered pin 8. The pin, when seated against the wall of the tapered opening, projects at its small end beyond the surface of the stem so that it thus becomes impossible to withdraw the stem 4. This will be obvious by referring to Figure 2. For the purpose of removing the stem it is first necessary to press the projecting end of the pin back into the opening 7 so that it can enter the lower end of the sleeve. Normally, however, the end of the pin is held projected by gravity. Accidental withdrawal of the pin from the opening is prevented by upsetting one wall of the opening 7 at the large end thereof so as to provide a stop or abutment 9 against which the large end of the pin will thrust when the small end thereof is pushed back from its normal position.

As the pin is inclined downwardly it will be obvious that when the projected portion is forced upwardly against the lower end of the sleeve 3, there is no danger of the pin being forced into the stem and thus releasing the oar look.

What is claimed is:

l. The combination with a sleeve constituting a bearing, of an. oar lock including a yoke and a stem, said stem being insertable into the sleeve so as to project therebelow, there being a tapered inclined opening extending through the stem and nor-- mally positioned below the sleeve, a tapered pin movably mounted within the opening and having its small end normally projected by gravity beyond the stem, said projecting end constituting means for engaging one end of the sleeve to hold the stem against withdrawal therefrom.

2. The combination with a sleeve constituting a bearing, of an oar lock including a yoke and a stem, said stem being insertable into the sleeve so as to project therebelow, there being a tapered inclined opening extending through the stem and normally positioned below the sleeve, a tapered pin movably mounted within the opening and having its small end normally projected. by gravity beyond the stem, said projecting end constituting means for engaging one end of the sleeve to hold the stem against with-- drawal therefrom, one end of the opening being contracted to provide an abutment to limit the movement of the pin when retracted into the stem.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature.

JOHN L. MOORE. 

